Tool-driver.



R. H. KNIGHT.

TOOL DRIVER.

APPLICATION FILED DEC.4. 1916.

1,242,205. Patented 0%. 9,1917.

2 SHEETS-SHEET l.

R. H. KNIGHT.

TOOL DRIVER. APPLICATION HLED 050.4. I9l6v 1,242,205. I Patented Oct. 9,1917.

V 2 SHEETS-SHEET 2.

I 30pm Emum gnbcntoz citizen of the United States,

TOOL-DRIVER.

To all whom it may concern:

Be it known that I, ROBERT H. KNIGHT, a

Iuka, in the county of Marion and State of Illinois, "have invented certain new and useful Improvements in Tool-Drivers, of which.

the following is a specification.

This invention relates to new and-useful improvements in. means for driving rotary tools such as bits, stump drivers and the like.

Referring to the drawings;

Figure 1 is a side elevation view of the machine;

Fig. 2 is atransverse sectional view taken on the line 22 of Fig. 1;

gig. 3 is a partial vertical sectional view; an V Fig. 4 is a transverse sectional view of the ratchet mechanism. v

Referring more particularly to the drawings, the reference character 1 represents a yoke, in one end of which is mounted a shaft 2 having a pressure'head 3 thereon;

Rotatably mounted in the opposite end of the yoke 1 is a shaft 4 the upper end of which'is enlarged as at 5.and provided with a circular series of depressions or the like 6. The end of the shaft 4 is slotted as at 5, and received within said slot is a projection 8 carried by the free end of a spiral member 9, the other end 10 of which is rotatably mounted in a recess 11 in the end of the shaft 2.

Mounted around the enlarged head 5 of the shaft 4 is a collar 12 in which are mounted at opposite sides, pivoted pawls 13 and 14 and suitably secured to said collar 12 is a resilient member 15 which is adapted to engage the pawls to secure the same'in engagement with the openings 6 in the enlarged head 5 of the shaft 4.

Pivotally mounted as at 16 in the yoke by means of a bolt 17, is a lever 18, one end of which is bifurcated as at 19 and 'engagesthe spiral member 9 to rotate the same upon rocking movement of the lever 18.

From the foregoingit' will be seen that as thelever 18 is rocked on its pivot 17, the

' spiral member 9 will be rotated due to this Copies of this patent may-be obtained for engagement with thefbifurcated end of said residing at Claims:

' Specification of Letters Patent. Patented O t. 9 1917; Application filed December 4, 1916. Serial No. 134,883. l

lever, and by shifting the member 15-circumferentially of the collar 12 the'pawls 13 or AES PATEN T -T F E 14 may beengaged with the notches'6to dedriven.

termine the directionin which the shaft 4 is 1. A device of the character described comprising a yoke, a shaft mounted in each end of the the shafts, means for rotating the spiral member, and means for connecting one of the shafts-with the spiral member to rotate said shaft. I p 7 2. A device of the character described comprising a yoke, a shaft mounted in each end of. the yoke, a spiral member mounted between the shafts, means for connecting yoke,a spiral member mounted in the spiral'member with one of the shafts,

and means pivotally mounted in the yoke and engaging said spiral member to rotate the samefand drive the shaft when connected thereto.

3. A device of the character described comprising a yoke member, a shaft mounted in each end of the yoke member, a spiral member mounted between the shafts, means for connecting the spiral member to one of the shafts to rotate the same, and a pivoted lever mounted in the yoke and adapted to rotate the spiral member to rotate the shafts.

4. A device of the character described comprising a'yoke member, a shaft mounted in each end of the yoke member, a spiral member mounted between the shafts, means for operatively connecting the spiral member to one of the shafts, and a bifurcated lever pivotally mounted in the yoke at right angles to the spiral member and having its furcations embracing the'same to rotate the spiral member upon rocking movementv of the bifurcated lever.

In testimony whereof I aifix my signature inthe presence of two witnesses.

ROBERT H. KNIGHT. Witnesses l V Gno. E. KNIERIM,

vH. L. -LOGAN.

five'cents each, by addressing the Commissioner of Patents, 7 ,Washington, D. G. 

